Heating apparatus fob process-embossing



A. STOKES,1II.

HEATING APPARATUS FOR PROCESS EMBOSSING.

APPLICATION FILED MAR. I4. 1919.

1,325,217. Patented Dec. 16, 1919.

3 SHEETSY-SIHEET l.

@@wwgu A. STOKES, In.

HEATING APPARMUS FOR' PROCESS EMBossING.

APPLICATION FILED MAR. I4, 1919.

1 ,825,2 1 7 Patented Dec. 16, 1919.

3 SHEETS-SHEET 2.

A. S10KES,1A. HEATING APPARATUS P0P PROCESS EMBOSSING.

Patented Dec. 16, 1919.

.APPLICATION FILED MAR.14, |919.

3 SHEETS-SHEET 3.

3 Y if UNITED sTATEs PATENT oEEIoE.

ANTHONY sToKEs, JE.,

0F CLEVELAND, OHIO.

HEATING APPARATUS 'FOR PROCESS-EMBOSSING.

Application filed March 14, 1919. Serial No. 282,572.

following is afull,`clear `and exact descripf'- tion, reference being had to the accompanyino' drawings. -F

lhe production of printing in raised eharf acters appliedv to' the face ofthe sheet is ver-y popular as a substitutefor embossing on account of its cheapnessand the avoidnarily called process embossing and con'd sists of printing the matter, as a letter-head,

for example, in suitable ink or sizing, and while the impression is wet subjecting it to a coating of glazing materials, .whichmay be of resinous character, and then heating the sheet to fuse the material in lplace and give it a varnish effect.

The object of my invention-is to provide j a simple apparatus adapted to enable the application of the glazing material to the printed sheet, and the heating of the treated sheet to be effected v ery quickly and with certainty of satisfactory results. To this end I provide a movable receptacle, preferably a rotating drum, in which the sheets may be placed and in which granulated glazing material carried bythe receptacle may be fiowed over the printed impression, and I combine with this treating device a heater and a traveling conveyer so organized that the sheet maybe readily taken from the receptacle and placed on the conveyerand carried by it through the heater at'the proper speed to effect the desired fusing of the varnish granules.

My invention is illustrated in the drawings hereoi and is hereinafter more. fully explained, and its essential characteristics are summarized in the claims.

In the drawings, Figure 1 is a side elevation of an apparatus embodyingmy invention; Fig. 2 is :L .plan thereof; Fig. 3 is a vertical section through the heating cham` ber, as indicated by the line 3-3 on Fig. 1; Fig. 4 is a longitudinal vertical section Specification of Letters Patent.

Patented Dec. 16, 1919.

on Fig. 2.

In Fig. 1-the frameofth'e machine is shown as comprising upright standards 10, a transverse brace member in the form of a platformindicatedlat'll and boundary memthroughthe treating drum, onthe line 4 4 bers 12 for a heatingchamber connected withl .the upper ends of the,1 standards, Thesey members'12 are shownas comprising angle bars bent to forman open boundaryiframe,

which is shown as of elliptical shape. These boundary frames ;arefwe 1ded or otherwise secured, to the standards .1.0. g The standards The heating chamber has 16 a' bottoni 17 carried within the .angle of the theA ,heater housing also carry lat their. upper, ends ai pair -of anceA of the delay incidentfto having d1es' made. This character o printing is ,ord1" boundapymeinbers 12 and made Aof asbestos .I

or other heatresisting material. The upper portion ofthe heating chamber is preferably hinged to allow ready access to the interior, for .lightingzthe burners, cleaning the -construction, etc. I effect this by mounting two cover members 18 on a hinge rod 19 carried by the end frame 12. The lower edges of these covers stand a. suitable distance above the apron to be described to allow the sheets to readily travel into and out of the heater.

The heater in thev chamber described is shown as comprising transverse burner tubes A20 (of which four are shown) above the apron and'tubes,21 below it.. Each of these tubes has a surrounding air inlet 22. These tubes are connected by elbows with a header 23, wlncli may be supported by the adjacent frame 12. A suitable hose from the gas sup.,

ply is connected to this header, and a key 25 adjusts the flame so that sheets may be properly heated but not scorched. i

30 in Figs. 1 and 2 indicates an endless flexible conveyer belt or apron composed of slats linked together. This belt extends sub-- stantially horizontal through the heater housing and then extends over rollers 3l at the ends of the beams 15 and depends below the housing. Mounted on one of the standards 10 is a ulley 32 which is connected by a belt 38 with a pulley 34 on one of the apron'rollers 31. By rotating this pulley i 32 the apron is adapted to travel at the deinclined slightly backwardly from the ver- A tical. At their highest points they have secured to them a longitudinal bar 43 which has downwardly bent arms 44 and 45. Journalcd in these arms is a rotary shaft 46. Mounted on this shaft and guided by the straps 4() and 41 is a drum 50. This drum is open at the front and has a thin wall, of sheet metal, for example, and a stiff back. The interior of the drum is coated with paint in which there is sand or carborundum grits. This gives a roughened surface. The back is shown as provided with a reinforcing pad which is secured to the shaft 46. l Suitable means are provided for rotating the drum 50. I have shown for this purpose a belt 55', which extends over the periphery of the drum and about a pair of guide pulleys 5G and 57 carried by a bracket 58 secured to' one of the beams 15 and thence onto a pulley 59 rigid with the pulleys'32 and 38. In the operation of my device, varnish granules (indicated at A in lFig. 4) are placed in the drum through its open front and lie on the lower portion of its peripheral wall. This drum being rotated, printed sheets fresh from the press are placed in this drum .face inward. and, due to the rotation,the material falls across the face of the sheet and adheres to the wet impression thereon. .After the impression has thus received the varnish granules the sheet is taken by hand out of the drum and placed on the belt immediately in front and`below the drum andv then travels through the heater, wherethe varnish'material becomes used'and properly formed on the printing ase.

I find that it is desirable to drive the drum at about vtwice the speed of travel of the conveyer. The speed of the conveyer and the heat of the burners are mutually adjusted so thatthere is no danger of scorching the sheet while the material will be fused in the minimum of time.

I find that this apparatus may conveniently beltimed to take care of the out-put of one job press, the operator taking the sheet as it comes to the press and'placing itin the drum with one hand and with the other hand taking the treated sheet from the drum and placing it on the convey-'e1'. Any suitable receptacle (not shown) beyond the other end of the conveyer may receive the sheets as they pass off of the end of the conveyer. T he conveyer is long enough to 'allow sutlicient time for the sheets to cool, so that the varnish material becomes set' and the sheets may pile up on each other without oit'- setting.

Having thus described my invention, what I claim is:

1. The combination, with a movable device adapted to carry a mass of granulated n'iaterial and to receive sheets of paper placed in it by hand and carrying them into contact with the mass of granulated material, of a heater, and a traveling conveyer extending beneath said device and through the heater for conveying the treated sheets from the treating device to the heater and. delivering them.

2. The combination of a rotary receptacle adapted to carry a mass of granulated material and toreceive sheets of paper placed in it by hand and carry them into contact with the mass of granulated material, a traveling conveyer belt on which the sheet from the receptacle may be laid, and .a heater to which the conveyer may feed the sheet. 3. The combination 0f a rotary drum open at one side and provided with means for retaining granulated material therein, a con- .veyer belt traveling adjacent to the druln,

and a heater through which the belt travels.,` 4. In a device of the character described, the combination of a drum open at one side and having its lower front edge elevated,v

means for rotating the drum, a heater, and means for feeding sheets away from the drum and to the heater.

5. In a device of the character described,

the combination of a drum open at one side' and mounted to rotate on an axis which is somewhat inclined in a direction to enable the drum to retain materialv in it, means for rotating the drum, and mea-ns for feeding sheets away from the drum.

6. The combination of a drum open 'at the front and mounted on an aXis ineliningslightly downwardly from the front, an endless -belt passing beneath the drum and traveling rearwardly therefrom, and aheater through which the belt travels.

7. The combination of a. pair of frame beams, a conveyer carried between said beams, inclined frame members rising from the beams, a rotary drum carried by said frame members and tipped backwardly and open on its forward side, means for rotating the drum and for progressing the conveyer, and a heater to which the conveyer ma)v feed a sheet.

8. The combination of a frame, a pair of horizontal beams carried thereby, rollers at the ends of the beams. an endless belt eX- tending over the two rollers. a drum adjacent to the forward portion of the belt adapt- 1 ,sassari ml to carry a mass of granulated material and to receive sheets of p aper placed in it by band and carry them into contact with the mass of granulated n'iaterial, means for rotating the drum and progressing the belt simultaneously, and a heater to which the belt may deliver a treated sheet.

9. The combination of a frame, a pair of horizontal beams carried thereby, rollers at the ends of the beams, an endlessv conveyer belt extending over the two rollers, a drum above the forward portion of the belt mounted on an axis inclining slightly downwardly toward the rear, and means for rotatingthe drum and progressing the belt simultaneously, and a heater carried by the frame at the rear of the drum, the belt traveling through said heater. A

lo ll'ie combination of a frame, a pair of horizontal beams carried thereby, rollers at Hw ends of the beams, an endless belt extendno over the two rollers, a `drum adjacent to be vforward portion of the belt, and'means .for rotating the drum and progressing the bell. sin'inltaneously, and a heater carried by simultaneously, and a heater carrled by the` frame at the rear of the drum, gas burners therein above and below the belt.

12. The combination of a frame, a pair of horizontal bea-ms carried thereby, rollers at the ends of the beams, an endless belt extending over the two rollers, a rotary drum above the forward portion of the belt opel;` on its front side, andprovided with means for retaining material therein and means for rotating the drum and progressing the belt lsimultaneously, and aheater carried by the frame at the rear of the\dru1n, said heater comprising a transverse ch ber,gas burners therein above and below e belt, and a.

header with which said burners wrmmncate and which is adapted to be connected with the gas main.

13. The combination with means adapted to carry a mass of granulated material andl "to receive sheets of paper placed in it by ed on said' rollers and having its upper reach hand and carry them into contact with the mass of granulated material, of a frame, a heater housing carried thereby comprising a transverse chamber having openings at the front and rear, horizontal beams carried by the frame, rollers mounted in the ends of said beams, an endless'c'onveyer belt mounted on said rollers and havin/g its upper reach passing through the openings of the heater, and means for driving the belt.

14. The combination with means adapted to carrya mass of granulated material and to receive sheets of paper placed in it by hand and carry them into contact with the mass of granulated material, of a frame, a'

heater housing carried thereby comprising a transverse chamber having openings at `the front and rear, horizontal beams carried by' the frameyrollers mounted in the ends of said beams, an endless conveyer belt mountpassing through the openings of the heater and its lower reach passing' below the heater, means in the heater lyino' above and *below the upper reach of the belt respectively, and lneans for driving the belt'.

15. The combination of a frame, a heater housing carried thereby comprising a transverse chamber having openings at the front and rear, horizontal beams carried by the frame, rollers mounted in the ends of said beams," an `endless conveyer belt mounted on said rollers and passing through the openings of the heater, burners in the heater ly* ing above and below the upper reach of the belt-respectively, a stationary u wardly extending frame carried by the elt support at the front of the heater, a. rotary drum carried by such rising frame on backwardly inclined axis and open at the front, and means for rotating-the drum and driving the conveyer belt concurrently.

Intestimony whereof, I hereunto affix my signature.

ANTHONY STOKES, -J R. 

